I upgraded from WP 3.1.1 to 3.2.1 and the login button stopped working.
using the Atahualpa theme 3.4.1. tried upgrading to 3.6.7 with no difference.
Switched to Twenty Ten 1.2 with no difference
The web site is troop765.org/spl
The URL is forwarded to acoutis.org
Clicking on the login button does nothing, however if you copy and pasted the URL it does work. The copied URL is:
other buttons seem to work
http://troop765.org/scribe, which is WP 3.1.1, still works